Minority parties play a crucial role in a political system by representing diverse viewpoints, interests, and specific demographics that may be overlooked by mainstream parties. These parties often bring attention to important issues, contributing to a more nuanced political discourse. They can also act as a check on the dominance of larger parties, promoting pluralism within the system. Furthermore, minority parties may influence policy through coalitions and negotiations, impacting legislation and electoral outcomes by shifting mainstream parties' positions to garner wider support.